Introduction Lennon-McCartney and Corpus

The Lennon-McCartney songwriting partnership was one of the most successful musical cooperations of all time. In the early days of the Beatles, John Lennon and Paul McCartney would often collaborate on songs extensively. As teenagers, they had made an agreement that they would both be credited with all songs written by either of them, whether jointly or separately. This is why all Beatles songs written by either Lennon or McCartney are officially credited to “Lennon-McCartney”. Later on it became increasingly common for them to write songs separately.

In an interview for Playboy Magazine in 1980, Lennon said the following about his songwriting partnership with McCartney:

[Paul] provided a lightness, an optimism, while I would always go for the sadness, the discords, the bluesy notes. There was a period when I thought I didn’t write melodies, that Paul wrote those and I just wrote straight, shouting rock ‘n’ roll. But, of course, when I think of some of my own songs—“In My Life”, or some of the early stuff, “This Boy”—I was writing melody with the best of them.

I would be curious to see whether Lennon’s characterization of the differences between his and McCartney’s songwriting styles is accurate. The spotify API provides some features by which this potential difference could be explored. For example, the valence and energy features of the AudioFeaturesObject could be useful.

For this course, I will compare Beatles songs written (predominantly) by Paul McCartney to those written (predominantly) by John Lennon. To this end I created two playlists on Spotify. One playlist for the McCartney songs and one for the Lennon songs. I used the this webpage as a guide to determine which song was written by whom. The corpus contains 142 songs in total (70 written by Paul McCartney and 72 written by John Lennon).

Paul McCartney once said about his songwriting relationship with John Lennon:

He’d write ‘Strawberry Fields,’ I’d go away and write ‘Penny Lane’ … to compete with each other. But it was very friendly competition.

This seems to imply that the two songwriters influenced each other’s writing to an extent. Therefore, I expect that the songs they wrote seperately during their time in the Beatles are probably more similar than the songs they wrote for their solo albums. To investigate this hypothesis, I will also use the first 2 solo albums by each artist to compare the differences in their early solo work to the differences in their writing styles when they were both in The Beatles.

First solo albums:

Paul McCartney:

John Lennon:

Tempo histogram NEW


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    <embed src="https://open.spotify.com/embed/track/5SwgE4wA0P7f6AEz2UQMB2?si=hLfnKpjMQtyEdDuCQWo-CQ" width="280" height="140"></embed>
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Tempogram NEW

Valence VS Energy Beatles


Valence vs Energy Solo


The Beatles sound: solo albums compared to Bleatles albums


Valence Of Beatles Albums Over Time


Valence Beatles Albums John vs Paul


Chromagram John Lennon - Tomorrow Never Knows


Chromagram Paul Mccartney - Ob-La-Di Ob-La- Da

What is the structure of ‘Because’ (chroma and timbre features)


These two self-similarity matrices illustrate pitch and timbre based self similarity in the song “Because” written by John Lennon.

Keygram Uncle Albert/Admiral Halsey


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